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47494644 = 223101149263
BaseRepresentation
bin1011010100101…
…1010111110100
310022100222101220
42311023113310
544124312034
64413550340
71114461231
oct265132764
9108328356
1047494644
112489a47a
1213aa53b0
139abbc52
146444788
154282749
hex2d4b5f4

47494644 has 48 divisors (see below), whose sum is σ = 113097600. Its totient is φ = 15510400.

The previous prime is 47494631. The next prime is 47494673. The reversal of 47494644 is 44649474.

It is a junction number, because it is equal to n+sod(n) for n = 47494596 and 47494605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 180457 + ... + 180719.

It is an arithmetic number, because the mean of its divisors is an integer number (2356200).

Almost surely, 247494644 is an apocalyptic number.

It is an amenable number.

47494644 is an abundant number, since it is smaller than the sum of its proper divisors (65602956).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47494644 is a wasteful number, since it uses less digits than its factorization.

47494644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520 (or 518 counting only the distinct ones).

The product of its digits is 387072, while the sum is 42.

The square root of 47494644 is about 6891.6358000115. The cubic root of 47494644 is about 362.1442096092.

The spelling of 47494644 in words is "forty-seven million, four hundred ninety-four thousand, six hundred forty-four".

Divisors: 1 2 3 4 6 12 101 149 202 263 298 303 404 447 526 596 606 789 894 1052 1212 1578 1788 3156 15049 26563 30098 39187 45147 53126 60196 78374 79689 90294 106252 117561 156748 159378 180588 235122 318756 470244 3957887 7915774 11873661 15831548 23747322 47494644